FR2053904A5 - - Google Patents

Info

Publication number
FR2053904A5
FR2053904A5 FR7018735A FR7018735A FR2053904A5 FR 2053904 A5 FR2053904 A5 FR 2053904A5 FR 7018735 A FR7018735 A FR 7018735A FR 7018735 A FR7018735 A FR 7018735A FR 2053904 A5 FR2053904 A5 FR 2053904A5
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7018735A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telettra SpA
Original Assignee
Telettra SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telettra SpA filed Critical Telettra SpA
Application granted granted Critical
Publication of FR2053904A5 publication Critical patent/FR2053904A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/165—Ground-based stations employing angle modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Amplifiers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
FR7018735A 1969-05-23 1970-05-22 Expired FR2053904A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5196369 1969-05-23

Publications (1)

Publication Number Publication Date
FR2053904A5 true FR2053904A5 (fr) 1971-04-16

Family

ID=11276093

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7018735A Expired FR2053904A5 (fr) 1969-05-23 1970-05-22

Country Status (6)

Country Link
AU (1) AU1515870A (fr)
DE (1) DE2023809A1 (fr)
ES (1) ES379900A1 (fr)
FR (1) FR2053904A5 (fr)
GB (1) GB1307888A (fr)
NL (1) NL7007520A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239996B (en) * 1990-01-12 1994-08-17 Technophone Ltd Booster for a portable radio telephone
FR2673789B1 (fr) * 1991-03-08 1993-09-03 Alcatel Espace Demodulateur a boucle de phase.

Also Published As

Publication number Publication date
ES379900A1 (es) 1973-04-16
GB1307888A (en) 1973-02-21
AU1515870A (en) 1971-11-18
NL7007520A (fr) 1970-11-25
DE2023809A1 (de) 1971-01-07

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Legal Events

Date Code Title Description
ST Notification of lapse